Peanut Butter Cup Cake

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Peanut Butter Cup Cake- a fudgy and moist chocolate cake topped with a creamy peanut butter frosting and mini peanut butter cups. So amazingly delicious.

Peanut Butter Cup Cake

 

This Peanut Butter Cup Cake is intense. It’s wonderfully sweet, full of chocolate flavor and peanut butter flavor. Everything you love about Reese’s peanut butter cups is in this cake.

If I had to pick an ultimate favorite dessert flavor, it would have to be chocolate and peanut butter. They are each divine on their own, but totally magical together.

The chocolate cake batter for this recipe is one of my favorite cake batters. Often homemade cakes are a little lackluster. Sometimes even a little dry. But not this one. It is amazing and is the basis of this Samoa Bundt Cake, another one of my favorite desserts.

Peanut Butter Cup Cake

 

What makes the cake batter so amazing?

  • A full two cups of melted semi-sweet chocolate chips adds tons of intense chocolate flavor.
  • A full box of brown sugar adds tons of sweetness.
  • A cup of sour cream helps keep the cake moist.
  • A cup of hot water brings out the chocolate flavor and keeps the cake moist.

 

The frosting is equally amazing and has a secret ingredient- instant pudding mix. It makes the frosting super light and fluffy.

Note: The batter will be much thinner than you are used to with a cake after you add the hot water. Don’t worry. It is supposed to be this way.

slices of Peanut Butter Cup Cake

More Chocolate-Peanut Butter Desserts:

Peanut Butter Cup Cake

Peanut Butter Cup Cake

Peanut Butter Cup Cake- a fudgy and moist chocolate cake topped with a creamy peanut butter frosting and mini peanut butter cups. So amazingly delicious.

Print Pin Rate
Course: Dessert
Cuisine: American
Keyword: layer cake
Prep Time: 15 minutes
Cook Time: 25 minutes
Servings: 18
Calories: 604kcal

Ingredients

Batter

  • 2 cups semi-sweet chocolate chips
  • 1/2 cup butter, softened
  • 1 (16-ounce) package light brown sugar
  • 3 large eggs
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 (8-ounce) container sour cream
  • 2 teaspoons vanilla extract
  • 1 cup hot water

Peanut Butter Frosting

  • 1 1/2 cups butter, softened
  • 1 1/4 cups creamy peanut butter
  • 4 cups powdered sugar
  • 1/4 cup milk
  • 2 1/2 tablespoons instant vanilla pudding mix
  • mini Reese's peanut butter cups

Instructions

  • Spray 3 9-inch cake pans with baking spray. Preheat oven to 350 degrees.
  • Place chocolate chips in a microwave-safe bowl and microwave at 30 second intervals, stirring in between, until melted. Set aside.
  • Using an electric mixer, beat butter and brown sugar at medium speed for 5 minutes.
  • Beat in eggs one at a time.
  • Beat in melted chocolate just until combined.
  • Whisk together flour, baking soda, and salt.
  • Add flour, alternating with sour cream, beginning and ending with flour mixture.
  • Beat in vanilla extract.
  • With mixer on low speed, gradually add hot water.
  • Divide cake batter evenly between the 3 cake pans.
  • Bake for 20 to 25 minutes or until cakes feel firm when you gently press on top. Let cool for 10 minutes in pan and then remove from pans to cool completely.
  • To make frosting, beat butter and peanut butter until smooth and creamy.
  • Beat in half the powdered sugar and half the milk.
  • Beat in remaining powdered sugar, remaining milk, and the instant vanilla pudding mix.
  • Place one cake layer on a cake stand or serving platter. Spread frosting on top. Layer another cake layer and spread frosting on top.
  • Layer final cake layer on top and spread top and sides with frosting. Reserve 3/4 cup of frsoting to decorate the top. Place it in a pastry bag fitted with a large star tip. Pipe it around the edge of the cake.
  • Press a mini peanut butter cup into each frosting mound.

Nutrition

Calories: 604kcal

Peanut Butter Cup Cake

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